Rajapandian M

AWS:

• Configured AWS VPCs, subnets, and route tables for multi-tier applications, enabling secure and scalable networking within AWS.
• Deployed Elastic Load Balancers to distribute incoming application traffic across multiple EC2 instances.
• Hands on AWS security practices such as Security Groups, Network ACLs, and AWS WAF (Web Application Firewall).
• Experience with VPNs, Direct Connect, and interconnecting on-premises networks with AWS.
• Used Route 53 to implement advanced DNS routing policies, including failover and geolocation-based routing.
• Optimized VPC configurations, including NAT Gateways and Direct Connect connections, to reduce data transfer costs and improve network efficiency.

K8s Lab Experience:

• Deployment, upgrading, scaling, and monitoring of Kubernetes clusters.
• Persistent storage solutions in Kubernetes using Persistent Volumes (PV) and Persistent Volume Claims (PVC)
• Kubernetes RBAC, Secret management, Pod Security Policies, Network Policies
• Deployed Kubernetes Ingress controllers (NGINX) for efficient routing of external traffic.

K8s - Hands-On Experience:

• Troubleshoot networking issues in Kubernetes clusters, including debugging ingress, services, and network policies.
• Network access troubleshoot for Public repo and On prem environments.
• Troubleshooting of DNS issue and SMTP access troubleshoot.

Network infrastructure:

Firewall:

• Experience with policy creation, rule configuration, and traffic analysis.
• Configured and managed site-to-site VPNs and SSL VPNs for secure remote access.

DHCP, DNS, and Systems:

• Experience in managing IP address allocations and subnetting.
• Hands-on experience in configuring, managing, and troubleshooting DNS servers (e.g., Microsoft DNS, cloud-based DNS services).
• Experience with domain registration, DNS zone management, and record types (A, AAAA, CNAME).
• Hands-on experience in routing, switching, and VLAN.

Endpoint Security:

• Monitoring, detecting, and responding to security incidents, malware outbreaks, and vulnerabilities.
• Handling security incidents and breaches, conducting forensic analysis, and implementing remediation strategies.
• Creation and enforcement of security policies, including device control, application whitelisting, and vulnerability management.

• Hands on experience in laptop diagnostic tools to find the faulty hardware in Acer, Lenovo, Dell and HP laptops
• Hands on experience in Laptop/Desktop hardware parts replacement
• Hardware and software driver's upgradation and installation
• For chip level issues will raise call log to concern service center and following them to resolve the issues
• Windows and Linux OS installation on laptops/Desktops
• Performed windows server OS installation
• Remotely will guide the user for laptop boot up issues like battery power reset, NV RAM reset, etc
• Share path quota allocation and user management on windows server
• Performed virtual OS installations on windows by using VMware Workstation.